Cream-test scale.



PATENTED JAN. 10, 1905.

W H. SARGENT.

GREAM TEST SCALE.

APPLIOATION FILED APE. 18,190?

Wiknuoco UNITED STATES Patented January 10, 1905.

PATENT OFFICE.

WILLIS H. SARGENT, OF ST. rIOI-INSBURY, VERMONT, ASSIGNOR TO E. & T.FAIRBANKS & COMPANY, OF ST. JOHNSBURY, VERMONT, A CORPORATION OFVERMONT.

CREAM-TEST SCALE.

SPECIFICATION forming part of Letters Patent No. 779,873, dated January10, 1905.

Application filed April 18, 1904. Serial No. 203,639.

To all whom, it may concern:

Be it known that I, VVILLIs H. SARGENT, a citizen of the United States,residing at St. J ohnsbury, in the county of Caledonia, State ofVermont, have invented certain new and useful Improvements in Cream-TestScales, of which the following is a description, reference being had tothe accompanying drawings and to the letters of reference markedthereon.

My invention relates to an improvement in weighing-scales, especially toa scale for use in connection with the well-known Babcock test fordetermining the amount of butter-fat in different kinds of milk.

The object of the invention is to provide a scale adapted to receive andweigh a plurality of bottles of milk and to insure an equal exact amountof milk in each bottle.

The invention therefore consists in the various matters hereinafterdescribed, and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a side elevation of a weighingscale embodying the invention.Fig. 2 is an end view, partly in section, showing the pivotal supportingarrangement for the bottleholder. Fig. 3 is a detail View in section ofthe balance-poise; and Fig. 4 is a view similar to Fig. 1, but showing ascale adapted to support a single series of bottles.

In the drawings the scale in general is of the well-known Fairbanks typeof even-balance scale, A A being the scale-plates thereof.

B B are additional plates attached to the plates A A by posts at havingopenings Z) (six in number) in each plate of a suitable size to receivethe test-bottles F, which pass through the openings and rest with theirbottoms on the bottom plates A A. The bottle-supports are swiveled orsleeved on the posts 0, so that they may revolve to bring the bottleswithin convenient reach of the operator.

The beam O is secured by the horizontal rods (Z to the arms of the yokese on opposite ends of the pivotal scale-beam f. The beam O is graduatedupwardly from the opposite ends toward the center, each end carrying thehanging poise D.

(i is a central poise or balance-poise on the beam, held against it by aspring g and carrying a balance-ball it on the screw e', by which finaladjustment is secured, the approximate balance being secured by thebalance-ball h.

The pointers E E are of usual construction and indicate when the balancehas been reached.

The manner of utilization of the scale in weighing is as follows: Anequal number of bottles is placed on each of the plates orbottle-holders, and if the pointers E E do not indicate a balance thepoise G is moved along until an approximate balance is effected, thefinal accurate adjustment by the balance-ball lb turning on thescrew-rod z', the thread of which screw-rod is of very fine pitch. Afterthe scale has been balanced one of the poises D is moved along the beamC a notch, which represents usually grams, (nine or eighteen,) andenough milk is fed into one of the bottles on one side to balance it.The poise is again set and another bottle filled, and so on until allthe bottles are loaded.

So far as the construction of the bottleholder and poise are concernedthey are applicable to a scale having a holder for one set of bottles,as shown in Fig. 4:.

Various minor modifications and changes may be made without departingfrom the spirit of my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a scale of the character described, the combination with thescale-beam, having a poise upon each side of the central portion, and abalancing-poise, of a rotatable support at each end of the beam for thereceptacles to be filled and weighed; substantially as described.

2. An even-balance scale comprising the centrally-pivoted scale-beam,having a sliding poise upon each side of its pivotal point, anintermediate balancingpoise, and rotatable scale-plates on the ends ofthe beam and each having a superposed spaced plate provided Withcircularly-arranged apertures to hold the receptacles While testing onthe scaleplates.

3. In ascale, the combination with the scalebeam, of a poise open at oneside to receive the scalesbeam, vertically edgewise and there providedwith a spring-finger pressing against the scale-beam and holding thepoise in place.

4. In a scale, a poise having an opening or recess in one side of awidth to receive the scale-beam and there provided with a spring- [ingercrossing said opening, ears projecting

